AP-756 Developing an Expansion ROM for the i960® Rx I/O Processor

This application note describes how to write an Expansion ROM for the i960 ® Rx I/O processor ("80960Rx").
It provides the information needed to write an Expansion ROM for an Intel Architecture (IA) platform, which includes the initialization of the Expansion ROM header
for the PCI bus. It also describes the proper initialization of the 80960Rx Expansion ROM registers.

The 89060Rx is a memory-mapped only PCI device. The 80960Rx is memory-mapped, not I/O mapped; to access the device, the Host must access the PCI address space for
that device. PCI memory space is mapped into host address space above 1 Mbyte and cannot be accessed by the host in Real Mode. This application note provides
details on how to write Expansion ROM code to properly access the 80960Rx local memory.

The attached application note (ap-756.pdf) contains code examples and descriptions for developing an Expansion ROM and accessing 80960 local memory.
Also attached is a text file (ap-756.txt) which contains a code example template which can be modified for your appication or device.

File Name/Size:: ap-756.pdf
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